Upgrade or replace the bridge saddle for left handed acoustic guitars such as Gibson/Taylor. TUSQ nuts and saddles deliver clear, rich sound and sustain close to ivory, which cannot be achieved with cow bone or synthetic materials. TUSQ is designed to transmit string vibrations to the body most efficiently. From rich bass to bouncy treble to rich bass, it brings out the original sound of your instrument without loss. Compared to the cow bone, it has more mulsonic ingredients to restore the wonderful lost sound. 【Note】 The mm dimensions listed are based on inches and are not exact measurements. Installation may require modification to fit individual instruments. The right skill and knowledge are required to handle it. We recommend that you have a professional professional or instrument store. We do not accept any **regarding damage or damage caused during installation.